Device for use in rebushing spring shackles



P. MINNARD DEVICE FOR USE IN REBUSHING SPRING SHACKLES June 23, 1925'.

Filed March 27. 1924 Patented June 23, 1925.

PATENT, OFFICE.

PAUL MINN'ARD, OF DETROIT, MICHIGAN.

DEVICE FOR USE IN REBUSHING SPRING SHACKLES.

Application filed March 27, 1924. Serial No. 702,345.

To all whom it may ao'rwem Be it known that I, PAUL MINNARD, a citizen of the United States, and a resident of Detroit, county of Wayne, and State of Michigan, have invented'cert'ain new and useful Improvements in Devices for Use in Rebushing Spring Shackles, of which the following is a full, clear, concise, and exact description, such as will enable others skilled in the art to which the invention relates to make and use the same, reference being made therein to the accompanying drawings, which form a part of this specification.

This invention relates to rebushing the spring shackles of an automobile, and is illustrated as embodied in a novel. device which is adjustable to take the load off the shackle while the shackle bolt and bushing are being removed and replaced. In one desirable arrangement, a base arranged to engage the top surface of a spring adjacent its shackle has threaded engagement with a support engaging the bottom of the chassis frame above the spring, so that the base and support are jointly ex tensible to force the frame and spring apart to take the load off the shackle. Preferably the base is provided with means, shown as angularly-spaced set-screws or similar adjustable devices, for tilting the spring to aline the eye in the end of the spring with the shackle bolt, so that the spring will not cause binding of the shackle bolt or bushing.

The above and other objects and features of the invention, including various novel combinations of parts and desirable particular constructions, will be apparent from the following description of the illustrative em bodiment shown in the accompanying drawings, in which:

Figure 1 is a side elevation of part of an automobile, showing my novel device used to take the load off the shackle of one front spring; and

Figure 2 is a section on the line 2-2, Figure 1,'but on a larger scale, showing the device partly in elevation and partly in vertical section.

One embodiment of the device which forms the subject-matter of the present application is shown in Figure 1 as used in taking the load off the shackle 10 of one of the front springs 1.2 of an automobile 14, while the shackle bolt and a worn shackle bolt bushing are being'removed and the bolt and a new bushing replaced.

The illustrated form of the device comprises a base 16 includinga boss 18 having a threaded axial opening 20 and a flange 22 having a plane lower surface engaging the 1 top of the spring 12 adjacent the shackle 10. Threaded in the opening 20 is a support 24 with a hexagonal head 26 arranged to rece1ve a wrench. The head 26 has an axial recess, in which is arranged a hardened pin 28 having a blunt point at its upper end which engages the bottom of one side member 30 of the chassis frame, immedlately above the spring 12. The use of a separate pin'28 is not only convenient in manufacture, but when the point wears down the pin may be removed and re ground, and paper or other backing stuffed in the bottom of the axial recess in the hexagonal head 26 to block up the pin 28 to its with a wrench, the spring and chassis frame zige forced apart to take the load off shackle In order to tilt the spring, to aline the eye of thespring with the shackle bolt so that it will not bind against the shackle bolt or bushing, four setscrews 32, or other equally angularly spaced adjustable devices, .are threaded through the flange 22 into engagement with the spring 12. By'difi'erently tightening or loosemng the various setscrews, the spring may be tilted into any desired plane, where the eye does not bind the shackle bolt and bushing.

While one illustrative embodiment of the invention has been described in detail, it'is not my intention to limit its scope to that partcular embodiment, or otherwise than by the terms of the appended claims.

I'claim:

v 1." A device for use in rebushing spring shackles which comprises, in combination, a base having a plane bottom to engage the top surface of a spring adjacent the shackle, a support having an axial projection in position to engage the chassis frame above the spring, the support and base being threaded together for adjustment by turning"' the support about an axis passing through the axial projection until the Ge- {V106 takes the load off the shackle, and four ment with the spring, one or more of the setscrews being adjusted to tilt the spring while still carr ing the load so that the shackle bolt an bushing may be removed and replaced without binding.

2. A device for use in rebushing sprmg shackles which com rises, in combination, a base having a plura ity of angularly-spaced setscrews to engage and control the inclination of the to surface of a spring adjacent the shackie, and a support having an axial projection in position to engage the chassis frame above the spring, the support and base being threaded together for adjustment by turning the support about an axis passin through the axial projection until the device takes the load off the shackle, one or more of the setscrews being adjusted to tilt the spring while still carrying the load so that the shackle bolt and bushing may be removed and replaced without binding. I

3. A- device for use in rebushing spring shackles which comprises, in combination, a base member having a central boss with an axial threaded opening and having an annular flange projecting from the bottom of the boss, a plurality of adjusting members threaded through the flange and equal- 1}? angularly spaced about the flange, which members engage the top of a spring adjacent its shackle and which are separately adjustable to tilt the spring to prevent binding on its shackle bolt or bushing, and a support threaded in the axial opening and havmg a projection extending upwardly along the axis of said 0 ening to engage the bottom of a chassis rame member to take the load off the shackle while the shackle bolt and bushing are being removed and replaced.

4. A device for use in rebushing spring shackles which comprises, 1n comblnation, members for engaging respectively the top of a spring adjacent its shackle and the bottom of the chassis frame above the spring, and which are threaded together to be jointly extensible for forcing the spring and chassis frame apart to take the load oiand which are relatively adjustable to be jointly extensible for forcing the spring and chassis frame apart to take the load ofi the spring shackle while the shackle bolt and bushing are being removed and replaced, and adjustable devices carried by the spring-engaging member for tilting the spring to aline it with the shackle bolt to prevent it from binding on the shackle bolt or bushing.

' In testimony whereof I afiix my signature.

PAUL MINNARD; 

